From owner-freebsd-stable@FreeBSD.ORG Tue May 13 19:53:37 2008 Return-Path: Delivered-To: stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C7C87106566C for ; Tue, 13 May 2008 19:53:37 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from tarsier.delphij.net (delphij-pt.tunnel.tserv2.fmt.ipv6.he.net [IPv6:2001:470:1f03:2c9::2]) by mx1.freebsd.org (Postfix) with ESMTP id 6B40A8FC2F for ; Tue, 13 May 2008 19:53:37 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from tarsier.geekcn.org (tarsier.geekcn.org [202.108.54.204]) (using TLSv1 with cipher ADH-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by tarsier.delphij.net (Postfix) with ESMTPS id 8D51928448 for ; Wed, 14 May 2008 03:53:36 +0800 (CST) Received: from localhost (tarsier.geekcn.org [202.108.54.204]) by tarsier.geekcn.org (Postfix) with ESMTP id 113D0EC3198; Wed, 14 May 2008 03:53:36 +0800 (CST) X-Virus-Scanned: amavisd-new at geekcn.org Received: from tarsier.geekcn.org ([202.108.54.204]) by localhost (mail.geekcn.org [202.108.54.204]) (amavisd-new, port 10024) with ESMTP id 1-dOP8b6d0T2; Wed, 14 May 2008 03:53:31 +0800 (CST) Received: from charlie.delphij.net (71.5.7.139.ptr.us.xo.net [71.5.7.139]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by tarsier.geekcn.org (Postfix) with ESMTPSA id 5D435EB0A75; Wed, 14 May 2008 03:53:30 +0800 (CST) DomainKey-Signature: a=rsa-sha1; s=default; d=delphij.net; c=nofws; q=dns; h=message-id:date:from:reply-to:organization:user-agent: mime-version:to:cc:subject:references:in-reply-to: x-enigmail-version:openpgp:content-type:content-transfer-encoding; b=LAYmwrnKIhr6IBoDNJ0DTopn9Cfwf0OTNOSP1nY6OYhlCuHsLdtM/Y4bhx5fLz4nY P3j3WUfCzcCCo8aE7BOBA== Message-ID: <4829F1B8.1000707@delphij.net> Date: Tue, 13 May 2008 12:53:28 -0700 From: Xin LI Organization: The FreeBSD Project User-Agent: Thunderbird 2.0.0.14 (X11/20080505) MIME-Version: 1.0 To: Ben Stuyts References: <7A0780B6-AD8E-440B-BFDB-EC2C4ACA1A70@altus-escon.com> In-Reply-To: <7A0780B6-AD8E-440B-BFDB-EC2C4ACA1A70@altus-escon.com> X-Enigmail-Version: 0.95.6 OpenPGP: id=18EDEBA0; url=http://www.delphij.net/delphij.asc Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: stable@freebsd.org Subject: Re: Panic after hung rsync, probably zfs related X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: d@delphij.net List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 13 May 2008 19:53:37 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Ben Stuyts wrote: | Hi, | | While doing an rsync from a zfs filesystem to an external usb hd (also | zfs), the rsync processes hung in zfs state. I could not kill these | processes, although the rest of the server seemingly continued to run | fine. The reboot command did not work. Next I tried a shutdown now | command. This caused a panic: Sound like you somehow run out of memory, there is an known issue with ZFS which causes livelock when there is memory pressure. Which rsync version are you using? With rsync 3.x the memory usage would drop drastically which would help to prevent this from happening. Cheers, - -- ** Help China's quake relief at http://www.redcross.org.cn/ |>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Xin LI http://www.delphij.net/ FreeBSD - The Power to Serve! -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) iEYEARECAAYFAkgp8bcACgkQi+vbBBjt66DQQgCfSObZqsQNCteT9SsjDTIqAa2E xfgAnAs9reRKfjaJdS9RAco0cnD7JZp0 =J4+1 -----END PGP SIGNATURE-----